I've noticed from time to time, users leave comments requesting other users increase their accept rate. I've seen this done in the original SE trilogy communities, so I guess it's accepted behavior there. Is this behavior accepted in our community? If users don't feel they've received an "acceptable" answer on questions, should they be punished in future questions for not accepting an answer on previous questions? Are folks really not answering questions because of low accept rates?
Please don't badger users to accept answers.
While it happens on the original trilogy it's not universally accepted and if you flag a "(please) improve your accept rate" comment it gets deleted immediately with no moderator involvement.
All acceptance means is that the OP found that answer the most helpful. If there isn't an answer that fits then there is no obligation on the OP to accept any answer.
If the OP comments that the answer helped but hasn't actually accepted then perhaps adding a comment linking to the Meta Stack Overflow post on how acceptance works might be in order, but please don't do it in a accusatory way.